Camera optical lens including six lenses of +−+−+− refractive powers

ABSTRACT

The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: −10.00≤f2/f3≤−5.00; and 1.20≤d2/d4≤3.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.

TECHNICAL FIELD

The present disclosure relates to the field of optical lens, and moreparticularly, to a camera optical lens suitable for handheld terminaldevices, such as smart phones or digital cameras, and imaging devices,such as monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but in general thephotosensitive devices of camera lens are nothing more than ChargeCoupled Device (CCD) or Complementary Metal-Oxide Semiconductor Sensor(CMOS sensor), and as the progress of the semiconductor manufacturingtechnology makes the pixel size of the photosensitive devices becomesmaller, plus the current development trend of electronic productstowards better functions and thinner and smaller dimensions, miniaturecamera lenses with good imaging quality therefore have become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. Also, with the development oftechnology and the increase of the diverse demands of users, and as thepixel area of photosensitive devices is becoming smaller and smaller andthe requirement of the system on the imaging quality is improvingconstantly, the five-piece, six-piece and seven-piece lens structuresgradually appear in lens designs. There is an urgent need forultra-thin, wide-angle camera lenses with good optical characteristicsand fully corrected chromatic aberration.

BRIEF DESCRIPTION OF DRAWINGS

Many aspects of the exemplary embodiment can be better understood withreference to the following drawings. The components in the drawings arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure. Moreover,in the drawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DESCRIPTION OF EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

Referring to FIG. 1, the present disclosure provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 according to Embodiment1 of the present disclosure. The camera optical lens 10 includes 6lenses. Specifically, the camera optical lens 10 includes, from anobject side to an image side, an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixthlens L6. An optical element such as an optical filter GF can be arrangedbetween the sixth lens L6 and an image plane Si.

The first lens L1 is made of a plastic material, the second lens L2 ismade of a plastic material, the third lens L3 is made of a plasticmaterial, the fourth lens L4 is made of a plastic material, the fifthlens L5 is made of a plastic material, and the sixth lens L6 is made ofa plastic material.

The first lens has a positive refractive power, the second lens has anegative refractive power, and the third lens has a positive refractivepower.

A focal length of the second lens L2 is defined as f2, and a focallength of the third lens L3 is defined as f3. The camera optical lens 10should satisfy a condition of −10.00≤f2/f3≤−5.00, which specifies aratio of the focal length f2 of the second lens L2 and the focal lengthf3 of the third lens L3. This can effectively reduce the sensitivity ofoptical lens group used in the camera and further enhance the imagingquality. Preferably, −9.83≤f2/f3≤−5.07.

An on-axis distance from an image side surface of the first lens L1 toan object side surface of the second lens L2 is defined as d2, and anon-axis distance from an image side surface of the second lens L1 to anobject side surface of the third lens L3 is defined as d4. The cameraoptical lens 10 further satisfies a condition of 1.20≤d2/d4≤3.00, whichspecifies a ratio of the on-axis distance between the first lens L1 andthe second lens L2 to the on-axis distance between the second lens L2and the third lens L3. This facilitates a development towards wide-anglelenses. Preferably, 1.23≤d2/d4≤2.89.

A total optical length from an object side surface of the first lens L1to an image plane of the camera optical lens 10 along an optic axis isdefined as TTL. When the focal length of the second lens, the focallength of the third lens, the on-axis distance from the image sidesurface of the first lens to the object side surface of the second lensand on-axis distance from the image side surface of the second lens tothe object side surface of the third lens satisfy the above conditions,the camera optical lens will have the advantage of high performance andsatisfy the design requirement of a low TTL.

In this embodiment, the object side surface of the first lens L1 isconvex in a paraxial region, and the an image side surface of the firstlens L1 is concave in the paraxial region.

A focal length of the camera optical lens 10 is defined as f, and afocal length of the first lens L1 is defined as f1. The camera opticallens 10 should satisfy a condition of 0.60≤f1/f≤1.91, which specifies aratio of the focal length f1 of the first lens L1 and the focal length fof the camera optical lens 10. In this way, the first lens has anappropriate positive refractive power, thereby facilitating reducing theaberration of the system while facilitating a development towardsultra-thin and wide-angle lenses. Preferably, 0.96≤f1/f≤1.53.

A curvature radius of the object side surface of the first lens L1 isdefined as R1, and a curvature radius of the image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 furthersatisfies a condition of −4.01≤(R1+R2)/(R1−R2)≤−1.23. This canreasonably control a shape of the first lens L1 in such a manner thatthe first lens L1 can effectively correct a spherical aberration of thecamera optical lens. Preferably, −2.50≤(R1+R2)/(R1−R2)≤−1.53.

An on-axis thickness of the first lens L1 is defined as d1. The cameraoptical lens 10 further satisfies a condition of 0.05≤d1/TTL≤0.14. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.07≤d1/TTL≤0.11.

In this embodiment, the object side surface of the second lens L2 isconvex in the paraxial region, and the image side surface of the secondlens L2 is concave in the paraxial region.

The focal length of the camera optical lens 10 is f, and a focal lengthof the second lens L2 is f2. The camera optical lens 10 furthersatisfies a condition of −54.70≤f2/f≤−5.44. By controlling the negativerefractive power of the second lens L2 within the reasonable range,correction of the aberration of the optical system can be facilitated.Preferably, −34.20≤f2/f≤−6.80.

A curvature radius of the object side surface of the second lens L2 isdefined as R3, and a curvature radius of the image side surface of thesecond lens L2 is defined as R4. The camera optical lens 10 furthersatisfies a condition of 2.97≤(R3+R4)/(R3−R4)≤20.12, which specifies ashape of the second lens L2. Within this range, a development towardsultra-thin and wide-angle lenses would facilitate correcting the problemof the on-axis chromatic aberrations. Preferably,4.75≤(R3+R4)/(R3−R4)≤16.10.

An on-axis thickness of the second lens L2 is defined as d3. The cameraoptical lens 10 further satisfies a condition of 0.02≤d3/TTL≤0.06. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.03≤d3/TTL≤0.05.

In this embodiment, an image side surface of the third lens L3 is convexin the paraxial region.

The focal length of the camera optical lens 10 is f, and a focal lengthof the third lens L3 is f3. The camera optical lens 10 further satisfiesa condition of 0.79≤f3/f≤4.33. The appropriate distribution of therefractive power leads to a better imaging quality and a lowersensitivity. Preferably, 1.27≤f3/f≤3.46.

A curvature radius of the object side surface of the third lens L3 isdefined as R5, and a curvature radius of the image side surface of thethird lens L3 is defined as R6. The camera optical lens 10 furthersatisfies a condition of 0.22≤(R5+R6)/(R5−R6)≤3.13. This can effectivelycontrol a shape of the third lens L3, thereby facilitating shaping ofthe third lens L3 and avoiding bad shaping and generation of stress dueto the overly large surface curvature of the third lens L3. Preferably,0.35≤(R5+R6)/(R5−R6)≤2.50.

An on-axis thickness of the third lens L3 is defined as d5. The cameraoptical lens 10 further satisfies a condition of 0.03≤d5/TTL≤0.15. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.05≤d5/TTL≤0.12.

In this embodiment, an object side surface of the fourth lens L4 isconcave in the paraxial region, an image side surface of the fourth lensL4 is convex in the paraxial region, and the fourth lens L4 has anegative refractive power.

The focal length of the camera optical lens 10 is f, and a focal lengthof the fourth lens L4 is f4. The camera optical lens 10 furthersatisfies a condition of −2.63≤f4/f≤−0.79. The appropriate distributionof the refractive power leads to a better imaging quality and a lowersensitivity. Preferably, −1.64≤f4/f≤−0.98.

A curvature radius of the object side surface of the fourth lens L4 isdefined as R7, and a curvature radius of the image side surface of thefourth lens L4 is defined as R8. The camera optical lens 10 furthersatisfies a condition of −6.30≤(R7+R8)/(R7−R8)≤−1.03, which specifies ashape of the fourth lens L4. Within this range, a development towardsultra-thin and wide-angle lenses can facilitate correcting the problemlike an off-axis aberration. Preferably, −3.93≤(R7+R8)/(R7−R8)≤−1.29.

An on-axis thickness of the fourth lens L4 is defined as d7. The cameraoptical lens 10 further satisfies a condition of 0.05≤d7/TTL≤0.15. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.07≤d7/TTL≤0.12.

In this embodiment, an object side surface of the fifth lens L5 isconvex in the paraxial region, an image side surface of the fifth lensL5 is convex in the paraxial region, and the fifth lens L5 has apositive refractive power.

The focal length of the camera optical lens 10 is f, and a focal lengthof the fifth lens L5 is f5. The camera optical lens 10 further satisfiesa condition of 0.29≤f5/f≤0.94. This can effectively make a light angleof the camera lens gentle and reduce the tolerance sensitivity.Preferably, 0.46≤f5/f≤0.75.

A curvature radius of the object side surface of the fifth lens L5 isdefined as R9, and a curvature radius of the image side surface of thefifth lens L5 is defined as R10. The camera optical lens 10 furthersatisfies a condition of 0.22≤(R9+R10)/(R9−R10)≤0.86, which specifies ashape of the fifth lens L5. Within this range, a development towardsultra-thin and wide-angle lenses can facilitate correcting the problemof an off-axis aberration. Preferably, 0.35≤(R9+R10)/(R9−R10)≤0.69.

An on-axis thickness of the fifth lens L5 is defined as d9. The cameraoptical lens 10 further satisfies a condition of 0.09≤d9/TTL≤0.26. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.14≤d9/TTL≤0.21.

In this embodiment, an object side surface of the sixth lens L6 isconcave in the paraxial region, an image side surface of the sixth lensL6 is concave in the paraxial region, and the sixth lens L6 has anegative refractive power.

The focal length of the camera optical lens 10 is f, and a focal lengthof the sixth lens L6 is f6. The camera optical lens 10 further satisfiesa condition of −1.19≤f6/f≤−0.37. The appropriate distribution of therefractive power leads to a better imaging quality and a lowersensitivity. Preferably, −0.74≤f6/f≤−0.46.

A curvature radius of the object side surface of the sixth lens L6 isdefined as R11, and a curvature radius of the image side surface of thesixth lens L6 is defined as R12. The camera optical lens 10 furthersatisfies a condition of 0.30≤(R11+R12)/(R11−R12)≤1.05, which specifiesa shape of the sixth lens L6. Within this range, a development towardsultra-thin and wide-angle lenses would facilitate correcting the problemlike an off-axis aberration. Preferably, 0.48≤(R11+R12)/(R11−R12)≤0.84.

A thickness on-axis of the sixth lens L6 is defined as d11. The cameraoptical lens 10 further satisfies a condition of 0.04≤d11/TTL≤0.13. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.07≤d11/TTL≤0.11.

In this embodiment, a combined focal length of the first lens L1 and thesecond lens L2 is f12. The camera optical lens 10 further satisfies acondition of 0.65≤f12/f≤2.01. This can eliminate the aberration anddistortion of the camera optical lens while reducing a back focal lengthof the camera optical lens, thereby maintaining miniaturization of thecamera optical lens. Preferably, 1.04≤f12/f≤1.61.

In this embodiment, the total optical length TTL of the camera opticallens 10 is smaller than or equal to 8.35 mm, which is beneficial forachieving ultra-thin lenses. Preferably, the total optical length TTL ofthe camera optical lens 10 is smaller than or equal to 7.97 mm.

In this embodiment, an F number of the camera optical lens 10 is smallerthan or equal to 1.80. A large F number leads to a better imagingperformance. Preferably, the F number of the camera optical lens 10 issmaller than or equal to 1.77.

With such design, the total optical length TTL of the camera opticallens 10 can be made as short as possible, and thus the miniaturizationcharacteristics can be maintained.

In the following, examples will be used to describe the camera opticallens 10 of the present disclosure. The symbols recorded in each examplewill be described as follows. The focal length, on-axis distance,curvature radius, on-axis thickness, inflexion point position, andarrest point position are all in units of mm.

TTL: Optical length (the total optical length from the object sidesurface of the first lens to the image plane of the camera optical lensalong the optic axis) in mm.

Preferably, inflexion points and/or arrest points can be arranged on theobject side surface and/or image side surface of the lens, so as tosatisfy the demand for the high quality imaging. The description belowcan be referred to for specific implementations.

The design information of the camera optical lens 10 in Embodiment 1 ofthe present disclosure is shown in Tables 1 and 2.

TABLE 1 R d nd νd S1 ∞  d0 = −0.492 R1 2.582  d1 = 0.710 nd1 1.5444 ν155.82 R2 8.726  d2 = 0.550 R3 11.609  d3 = 0.275 nd2 1.6701 ν2 19.39 R48.261  d4 = 0.439 R5 −9.013  d5 = 0.760 nd3 1.5444 ν3 55.82 R6 −3.172 d6 = 0.505 R7 −1.860  d7 = 0.700 nd4 1.6449 ν4 22.54 R8 −3.592  d8 =0.069 R9 6.214  d9 = 1.294 nd5 1.5444 ν5 55.82  R10 −2.430 d10 = 0.450 R11 −8.355 d11 = 0.671 nd6 1.5444 ν6 55.82  R12 2.084 d12 = 0.597  R13∞ d13 = 0.210 ndg 1.5168 νg 64.17  R14 ∞ d14 = 0.360

In the table, meanings of various symbols will be described as follows.

S1: aperture;

R: curvature radius of an optical surface, a central curvature radiusfor a lens;

R1: curvature radius of the object side surface of the first lens L1;

R2: curvature radius of the image side surface of the first lens L1;

R3: curvature radius of the object side surface of the second lens L2;

R4: curvature radius of the image side surface of the second lens L2;

R5: curvature radius of the object side surface of the third lens L3;

R6: curvature radius of the image side surface of the third lens L3;

R7: curvature radius of the object side surface of the fourth lens L4;

R8: curvature radius of the image side surface of the fourth lens L4;

R9: curvature radius of the object side surface of the fifth lens L5;

R10: curvature radius of the image side surface of the fifth lens L5;

R11: curvature radius of the object side surface of the sixth lens L6;

R12: curvature radius of the image side surface of the sixth lens L6;

R13: curvature radius of an object side surface of the optical filterGF;

R14: curvature radius of an image side surface of the optical filter GF;

d: on-axis thickness of a lens and an on-axis distance between lenses;

d0: on-axis distance from the aperture S1 to the object side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image side surface of the first lens L1 tothe object side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image side surface of the second lens L2to the object side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image side surface of the third lens L3 tothe object side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image side surface of the fourth lens L4to the object side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image side surface of the fifth lens L5to the object side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image side surface of the sixth lens L6to the object side surface of the optical filter GF;

d13: on-axis thickness of the optical filter GF;

d14: on-axis distance from the image side surface of the optical filterGF to the image plane;

nd: refractive index of d line;

nd1: refractive index of d line of the first lens L1;

nd2: refractive index of d line of the second lens L2;

nd3: refractive index of d line of the third lens L3;

nd4: refractive index of d line of the fourth lens L4;

nd5: refractive index of d line of the fifth lens L5;

nd6: refractive index of d line of the sixth lens L6;

ndg: refractive index of d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

vg: abbe number of the optical filter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inEmbodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10R1  3.0490E−01 −4.5231E−06 −8.3568E−07  2.7193E−06  4.7318E−06 R2−4.1669E−01  9.9806E−06 −3.3963E−05  −1.0078E−05  −9.6337E−07 R3 6.4122E+01 −1.5670E−02 5.5348E−03 −8.2551E−04  −3.9831E−04 R4 3.6759E+01 −1.4609E−02 4.7535E−03 1.6000E−03 −4.3372E−03 R5  4.5760E+01−2.9301E−02 −3.3187E−03  2.0368E−02 −8.4376E−02 R6  3.0886E+00−2.4480E−02 3.7500E−04 7.5972E−03 −1.5224E−02 R7 −3.1513E+00 −5.2459E−021.4458E−02 −9.1768E−03   7.7385E−03 R8 −1.8033E+00 −2.1236E−022.3581E−03 −4.6413E−04   2.6648E−04 R9 −6.7053E+01  9.6946E−03−7.6364E−03  1.8847E−03  6.5338E−05 R10 −5.2483E+00  1.7947E−02−5.3824E−03  4.6275E−04  3.0063E−04 R11 −2.6217E+00 −2.2637E−027.3252E−04 1.0249E−03 −2.0762E−04 R12 −6.5011E+00 −1.7793E−02 3.6144E−03−5.3778E−04   5.5262E−05 Aspherical surface coefficients A12 A14 A16 A18A20 R1  1.4135E−06 −3.7940E−07 −3.0966E−07 −1.5461E−07 −6.5531E−08 R2−1.1711E−06 −9.8394E−07 −6.6703E−07 −4.0667E−07 −2.3270E−07 R3 3.9841E−04 −1.9534E−04  5.5421E−05 −1.3533E−05 −2.1572E−06 R4 3.8357E−03 −2.1159E−03  7.0816E−04 −1.3164E−04  1.0980E−05 R5 1.4701E−01 −1.4772E−01  8.6731E−02 −2.7740E−02  3.7385E−03 R6 1.3474E−02 −7.0154E−03  2.1945E−03 −3.8079E−04  2.8484E−05 R7−6.0981E−03  3.0729E−03 −8.4159E−04  1.1549E−04 −6.2938E−06 R8−1.4514E−04  4.6001E−05 −7.4513E−06  5.8275E−07 −1.7150E−08 R9−1.8584E−04  5.5552E−05 −8.2643E−06  6.2830E−07 −1.9120E−08 R10−1.0172E−04  1.3694E−05 −9.3452E−07  3.1580E−08 −4.0977E−10 R11 1.9988E−05 −1.1228E−06  3.7705E−08 −7.0352E−10  5.7016E−12 R12−3.7972E−06  1.6024E−07 −3.6950E−09  3.6347E−11 −3.1233E−14

Here, K is a conic coefficient, and A4, A6, A8, A10, A12, A14, A16, A18and A20 are aspheric surface coefficients.

IH: Image Heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰  (1)

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above formula (1). However, the presentdisclosure is not limited to the aspherical polynomials form shown inthe formula (1).

Table 3 and Table 4 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 10 according toEmbodiment 1 of the present disclosure. P1R1 and P1R2 represent theobject side surface and the image side surface of the first lens L1,P2R1 and P2R2 represent the object side surface and the image sidesurface of the second lens L2, P3R1 and P3R2 represent the object sidesurface and the image side surface of the third lens L3, P4R1 and P4R2represent the object side surface and the image side surface of thefourth lens L4, P5R1 and P5R2 represent the object side surface and theimage side surface of the fifth lens L5, and P6R1 and P6R2 represent theobject side surface and the image side surface of the sixth lens L6. Thedata in the column named “inflexion point position” refers to verticaldistances from inflexion points arranged on each lens surface to theoptic axis of the camera optical lens 10. The data in the column named“arrest point position” refers to vertical distances from arrest pointsarranged on each lens surface to the optic axis of the camera opticallens 10.

TABLE 3 Number of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 0 P1R2 1 1.415 P2R1 0 P2R2 0 P3R1 0 P3R2 0P4R1 0 P4R2 0 P5R1 1 1.085 P5R2 2 1.345 2.325 P6R1 1 1.955 P6R2 1 1.035

TABLE 4 Number of arrest points Arrest point position 1 P1R1 0 P1R2 0P2R1 0 P2R2 0 P3R1 0 P3R2 0 P4R1 0 P4R2 0 P5R1 1 1.945 P5R2 0 P6R1 0P6R2 1 2.885

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 486 nm, 588 nm and 656 nm afterpassing the camera optical lens 10 according to Embodiment 1. FIG. 4illustrates a field curvature and a distortion of light with awavelength of 588 nm after passing the camera optical lens 10 accordingto Embodiment 1, in which a field curvature S is a field curvature in asagittal direction and T is a field curvature in a tangential direction.

Table 13 shows various values of Embodiments 1, 2 and 3 and valuescorresponding to parameters which are specified in the above conditions.

As shown in Table 13, Embodiment 1 satisfies the above conditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 3.094 mm. The image height of 1.0H is 4.000 mm. The FOV (fieldof view) is 72.07°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 2

Embodiment 2 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween will be described in the following.

Table 5 and Table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R d nd νd S1 ∞  d0 = −0.498 R1 2.594  d1 = 0.687 nd1 1.5444 ν155.82 R2 8.021  d2 = 0.563 R3 15.239  d3 = 0.286 nd2 1.6701 ν2 19.39 R412.588  d4 = 0.282 R5 51.246  d5 = 0.489 nd3 1.5444 ν3 55.82 R6 −10.121 d6 = 0.415 R7 −3.350  d7 = 0.701 nd4 1.6449 ν4 22.54 R8 −15.708  d8 =0.183 R9 7.823  d9 = 1.300 nd5 1.5444 ν5 55.82  R10 −2.110 d10 = 0.640 R11 −11.243 d11 = 0.649 nd6 1.5444 ν6 55.82  R12 2.102 d12 = 0.647  R13∞ d13 = 0.210 ndg 1.5168 νg 64.17  R14 ∞ d14 = 0.324

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10R1  2.3079E−01 −3.8276E−06 9.5408E−06 3.9192E−06  1.1413E−06 R2 1.0341E+00  4.6943E−05 3.6512E−06 −3.1145E−06  −2.4333E−06 R3 9.8974E+01 −1.3353E−02 4.4244E−03 −6.1848E−04  −2.7620E−04 R4 7.2347E+01 −1.5178E−02 4.9301E−03 1.7365E−03 −4.7415E−03 R5  5.0001E+02−2.6276E−02 −2.8362E−03  1.6264E−02 −6.3736E−02 R6 −1.7834E+02−4.6845E−02 9.1908E−04 2.7718E−02 −7.6940E−02 R7 −1.6237E+01 −7.2457E−022.3369E−02 −1.7512E−02   1.7296E−02 R8 −1.3381E+01 −2.7839E−023.5742E−03 −7.9810E−04   5.2813E−04 R9 −2.0004E+02  1.5874E−02−1.6078E−02  5.0852E−03  2.2599E−04 R10 −2.0275E+00  2.4346E−02−8.5741E−03  8.5590E−04  6.5029E−04 R11  6.0122E+00 −2.2509E−027.3648E−04 1.0300E−03 −2.0899E−04 R12 −6.1204E+00 −1.8890E−02 3.8996E−03−5.9356E−04   6.2917E−05 Aspherical surface coefficients A12 A14 A16 A18A20 R1  1.4602E−08 −1.2222E−07 −9.2730E−08 −5.1195E−08 −2.4760E−08 R2−1.2726E−06 −5.7584E−07 −2.3842E−07 −9.1122E−08 −3.1511E−08 R3 2.5430E−04 −1.1432E−04  3.1725E−05 −5.9019E−06 −3.3806E−07 R4 4.2920E−03 −2.4033E−03  8.2127E−04 −1.5630E−04  1.1453E−05 R5 1.0498E−01 −9.9709E−02  5.5350E−02 −1.6739E−02  2.1317E−03 R6 9.4138E−02 −6.7755E−02  2.9316E−02 −7.0345E−03  7.1755E−04 R7−1.6034E−02  9.4851E−03 −3.0530E−03  4.9199E−04 −3.1406E−05 R8−3.2984E−04  1.1978E−04 −2.2260E−05  1.9930E−06 −6.7650E−08 R9−8.2355E−04  3.1556E−04 −6.0157E−05  5.8628E−06 −2.2854E−07 R10−2.5687E−04  4.0350E−05 −3.2130E−06  1.2677E−07 −1.9120E−09 R11 2.0139E−05 −1.1334E−06  3.8081E−08 −7.1271E−10  5.6579E−12 R12−4.4417E−06  1.9226E−07 −4.5618E−09  4.5721E−11 −6.1531E−14

Table 7 and Table 8 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 20 according toEmbodiment 2 of the present disclosure.

TABLE 7 Number of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 0 P1R2 0 P2R1 0 P2R2 0 P3R1 1 0.255 P3R2 0P4R1 0 P4R2 1 1.975 P5R1 1 0.875 P5R2 2 1.615 2.005 P6R1 1 1.965 P6R2 11.035

TABLE 8 Number of arrest points Arrest point position 1 P1R1 0 P1R2 0P2R1 0 P2R2 0 P3R1 1 0.435 P3R2 0 P4R1 0 P4R2 0 P5R1 1 1.535 P5R2 0 P6R10 P6R2 1 2.905

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 486 nm, 588 nm and 656 nm afterpassing the camera optical lens 20 according to Embodiment 2. FIG. 8illustrates a field curvature and a distortion of light with awavelength of 588 nm after passing the camera optical lens 20 accordingto Embodiment 2.

As shown in Table 13, Embodiment 2 satisfies the above conditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 3.083 mm. The image height of 1.0H is 4.000 mm. The FOV (fieldof view) is 72.38°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 3

Embodiment 3 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween will be described in the following.

Table 9 and Table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R d nd νd S1 ∞  d0 = −0.490 R1 2.596  d1 = 0.687 nd1 1.5444 ν155.82 R2 7.774  d2 = 0.621 R3 15.048  d3 = 0.267 nd2 1.6701 ν2 19.39 R412.960  d4 = 0.223 R5 29.322  d5 = 0.548 nd3 1.5444 ν3 55.82 R6 −11.448 d6 = 0.463 R7 −3.109  d7 = 0.751 nd4 1.6449 ν4 22.54 R8 −14.122  d8 =0.086 R9 7.498  d9 = 1.303 nd5 1.5444 ν5 55.82  R10 −2.060 d10 = 0.634 R11 −11.710 d11 = 0.648 nd6 1.5444 ν6 55.82  R12 2.080 d12 = 0.647  R13∞ d13 = 0.210 ndg 1.5168 νg 64.17  R14 ∞ d14 = 0.313

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspherical surface coefficients k A4 A6 A8A10 R1  2.0418E−01  1.7067E−05 1.0697E−05 6.7059E−06 −2.5132E−07 R2 1.2070E−01  3.8666E−07 −1.2284E−05  −1.8239E−05  −7.2435E−06 R3 9.8090E+01 −1.4795E−02 5.0643E−03 −7.6242E−04  −3.6156E−04 R4 8.2480E+01 −1.7444E−02 6.0472E−03 2.3275E−03 −6.6616E−03 R5  4.3139E+02−2.5923E−02 −2.7114E−03  1.6203E−02 −6.3216E−02 R6 −2.5617E+02−4.4791E−02 8.2111E−04 2.5223E−02 −6.8487E−02 R7 −1.3745E+01 −7.0174E−022.2249E−02 −1.6395E−02   1.5921E−02 R8 −3.3220E+01 −2.5504E−023.1274E−03 −6.6704E−04   4.2287E−04 R9 −2.1335E+02  1.6642E−02−1.6869E−02  5.4314E−03  2.4437E−04 R10 −1.9572E+00  2.4505E−02−8.6325E−03  8.6570E−04  6.5847E−04 R11  7.9879E+00 −2.3387E−027.8716E−04 1.1249E−03 −2.3338E−04 R12 −6.4952E+00 −1.7819E−02 3.5524E−03−5.2147E−04   5.3528E−05 Aspherical surface coefficients A12 A14 A16 A18A20 R1 −5.3863E−07 −6.0982E−07 −2.3054E−07 −9.0357E−08 −2.9560E−08 R2−2.1177E−06 −8.7462E−07 −3.7460E−07 −1.2861E−07 −2.2194E−08 R3 3.3800E−04 −1.5724E−04  5.0206E−05 −8.7763E−06 −4.0584E−07 R4 6.5042E−03 −3.8898E−03  1.4252E−03 −2.9194E−04  2.0796E−05 R5 1.0382E−01 −9.8477E−02  5.4557E−02 −1.6473E−02  2.0927E−03 R6 8.1853E−02 −5.7561E−02  2.4330E−02 −5.7043E−03  5.6804E−04 R7−1.4522E−02  8.4487E−03 −2.6751E−03  4.2397E−04 −2.6556E−05 R8−2.5239E−04  8.7643E−05 −1.5587E−05  1.3336E−06 −4.3173E−08 R9−9.1035E−04  3.5463E−04 −6.8742E−05  6.8132E−06 −2.6977E−07 R10−2.6074E−04  4.1056E−05 −3.2782E−06  1.2954E−07 −1.9673E−09 R11 2.2983E−05 −1.3228E−06  4.5376E−08 −8.7306E−10  6.7913E−12 R12−3.6496E−06  1.5284E−07 −3.5183E−09  3.3197E−11 −9.7747E−14

Table 11 and table 12 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 30 according toEmbodiment 3 of the present disclosure.

TABLE 11 Number of Inflexion point Inflexion point inflexion pointsposition 1 position 2 P1R1 0 P1R2 0 P2R1 0 P2R2 0 P3R1 2 0.345 1.365P3R2 0 P4R1 0 P4R2 0 P5R1 1 0.865 P5R2 2 1.625 1.995 P6R1 2 1.935 2.985P6R2 1 1.025

TABLE 12 Number of arrest points Arrest point position 1 P1R1 0 P1R2 0P2R1 0 P2R2 0 P3R1 1 0.595 P3R2 0 P4R1 0 P4R2 0 P5R1 1 1.525 P5R2 0 P6R10 P6R2 1 2.985

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 486 nm, 588 nm and 656 nm afterpassing the camera optical lens 30 according to Embodiment 3. FIG. 12illustrates field curvature and distortion of light with a wavelength of588 nm after passing the camera optical lens 30 according to Embodiment3.

As shown in Table 13, Embodiment 3 satisfies the above conditions.

Table 13 in the following lists values corresponding to the respectiveconditions in this embodiment in order to satisfy the above conditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 3.071 mm. The image height of 1.0H is 4.000 mm. The FOV (fieldof view) is 72.40°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

TABLE 13 Parameters Embodiment Embodiment Embodiment and conditions 1 23 f  5.414 5.396 5.374 f1 6.471 6.743 6.841 f2 −44.204 −112.887 −146.916f3 8.596 15.569 15.195 f4 −7.109 −6.753 −6.352 f5 3.388 3.200 3.119 f6−2.996 −3.198 −3.192  f12 7.242 7.024 7.050 F  1.75 1.75 1.75 f2/f3−5.14 −7.25 −9.67 d2/d4 1.25 2.00 2.78

It can be appreciated by one having ordinary skill in the art that thedescription above is only embodiments of the present disclosure. Inpractice, one having ordinary skill in the art can make variousmodifications to these embodiments in forms and details withoutdeparting from the spirit and scope of the present disclosure.

What is claimed is:
 1. A camera optical lens, substantially consistingof, from an object side to an image side: a first lens having a positiverefractive power; a second lens having a negative refractive power; athird lens having a positive refractive power; a fourth lens; a fifthlens; and a sixth lens, wherein the camera optical lens satisfiesfollowing conditions:−10.00≤f2/f3≤−5.00; and1.20≤d2/d4≤3.00, where f2 denotes a focal length of the second lens; f3denotes a focal length of the third lens; d2 denotes an on-axis distancefrom an image side surface of the first lens to an object side surfaceof the second lens; and d4 denotes an on-axis distance from an imageside surface of the second lens to an object side surface of the thirdlens.
 2. The camera optical lens as described in claim 1, furthersatisfying following conditions:−9.83≤f2/f3≤−5.07; and1.23≤d2/d4≤2.89.
 3. The camera optical lens as described in claim 1,wherein an object side surface of the first lens is convex in a paraxialregion, and the image side surface of the first lens is concave in theparaxial region, and the camera optical lens further satisfies followingconditions:0.60≤f1/f≤1.91;−4.01≤(R1+R2)/(R1−R2)≤−1.23; and0.05≤d1/TTL≤0.14, where f denotes a focal length of the camera opticallens; f1 denotes a focal length of the first lens; R1 denotes acurvature radius of the object side surface of the first lens; R2denotes a curvature radius of the image side surface of the first lens;d1 denotes an on-axis thickness of the first lens; and TTL denotes atotal optical length from the object side surface of the first lens toan image plane of the camera optical lens along an optic axis.
 4. Thecamera optical lens as described in claim 3, further satisfyingfollowing conditions:0.96≤f1/f≤1.53;−2.50≤(R1+R2)/(R1−R2)≤−1.53; and0.07≤d1/TTL≤0.11.
 5. The camera optical lens as described in claim 1,wherein the object side surface of the second lens is convex in aparaxial region, and the image side surface of the second lens isconcave in the paraxial region, and the camera optical lens furthersatisfies following conditions:−54.70≤f2/f≤−5.44;2.97≤(R3+R4)/(R3−R4)≤20.12; and0.02≤d3/TTL≤0.06, where f denotes a focal length of the camera opticallens; R3 denotes a curvature radius of the object side surface of thesecond lens; R4 denotes a curvature radius of the image side surface ofthe second lens; d3 denotes an on-axis thickness of the second lens; andTTL denotes a total optical length from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis.
 6. The camera optical lens as described in claim 5, furthersatisfying following conditions:−34.17≤f2/f≤−6.80;4.75≤(R3+R4)/(R3−R4)≤16.10; and0.03≤d3/TTL≤0.05.
 7. The camera optical lens as described in claim 1,wherein an image side surface of the third lens is convex in a paraxialregion, and the camera optical lens further satisfies followingconditions:0.79≤f3/f≤4.33;0.22≤(R5+R6)/(R5−R6)≤3.13; and0.03≤d5/TTL≤0.15, where f denotes a focal length of the camera opticallens; R5 denotes a curvature radius of the object side surface of thethird lens; R6 denotes a curvature radius of the image side surface ofthe third lens; d5 denotes an on-axis thickness of the third lens; andTTL denotes a total optical length from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis.
 8. The camera optical lens as described in claim 7, furthersatisfying following conditions:1.27≤f3/f≤3.46;0.35≤(R5+R6)/(R5−R6)≤2.50; and0.05≤d5/TTL≤0.12.
 9. The camera optical lens as described in claim 1,wherein the fourth lens has a negative refractive power, and comprisesan object side surface being concave in a paraxial region and an imageside surface being convex in the paraxial region, and the camera opticallens further satisfies following conditions:−2.63≤f4/f≤−0.79;−6.30≤(R7+R8)/(R7−R8)≤−1.03; and0.05≤d7/TTL≤0.15, where f denotes a focal length of the camera opticallens; f4 denotes a focal length of the fourth lens; R7 denotes acurvature radius of the object side surface of the fourth lens; R8denotes a curvature radius of the image side surface of the fourth lens;d7 denotes an on-axis thickness of the fourth lens; and TTL denotes atotal optical length from an object side surface of the first lens to animage plane of the camera optical lens along an optic axis.
 10. Thecamera optical lens as described in claim 9, further satisfyingfollowing conditions:−1.64≤f4/f≤−0.98;−3.93≤(R7+R8)/(R7−R8)≤−1.29; and0.07≤d7/TTL≤0.12.
 11. The camera optical lens as described in claim 1,wherein the fifth lens has a positive refractive power, and comprises anobject side surface being convex in a paraxial region and an image sidesurface being convex in the paraxial region, and the camera optical lensfurther satisfies following conditions:0.29≤f5/f≤0.94;0.22≤(R9+R10)/(R9−R10)≤0.86; and0.09≤d9/TTL≤0.26, where f denotes a focal length of the camera opticallens; f5 denotes a focal length of the fifth lens; R9 denotes acurvature radius of the object side surface of the fifth lens; R10denotes a curvature radius of the image side surface of the fifth lens;d9 denotes an on-axis thickness of the fifth lens; and TTL denotes atotal optical length from an object side surface of the first lens to animage plane of the camera optical lens along an optic axis.
 12. Thecamera optical lens as described in claim 11, further satisfyingfollowing conditions:0.46≤f5/f≤0.75;0.35≤(R9+R10)/(R9−R10)≤0.69; and0.14≤d9/TTL≤0.21.
 13. The camera optical lens as described in claim 1,wherein the sixth lens has a negative refractive power, and comprises anobject side surface being concave in a paraxial region and an image sidesurface being concave in the paraxial region, and the camera opticallens further satisfies following conditions:−1.19≤f6/f≤−0.37;0.30≤(R11+R12)/(R11−R12)≤1.05; and0.04≤d11/TTL≤0.13, where f denotes a focal length of the camera opticallens; f6 denotes a focal length of the sixth lens; R11 denotes acurvature radius of the object side surface of the sixth lens; R12denotes a curvature radius of the image side surface of the sixth lens;d11 denotes an on-axis thickness of the sixth lens; and TTL denotes atotal optical length from an object side surface of the first lens to animage plane of the camera optical lens along an optic axis.
 14. Thecamera optical lens as described in claim 13, further satisfyingfollowing conditions:−0.74≤f6/f≤−0.46;0.48≤(R11+R12)/(R11−R12)≤0.84; and0.07≤d11/TTL≤0.11.
 15. The camera optical lens as described in claim 1,further satisfying a following condition:0.65≤f12/f≤2.01, where f denotes a focal length of the camera opticallens; and f12 denotes a combined focal length of the first lens and thesecond lens.
 16. The camera optical lens as described in claim 15,further satisfying a following condition:1.04≤f12/f≤1.61.
 17. The camera optical lens as described in claim 1,wherein a total optical length TTL from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis is smaller than or equal to 8.35 mm.
 18. The camera optical lens asdescribed in claim 17, wherein the total optical length TTL of thecamera optical lens is smaller than or equal to 7.97 mm.
 19. The cameraoptical lens as described in claim 1, wherein an F number of the cameraoptical lens is smaller than or equal to 1.80.
 20. The camera opticallens as described in claim 19, wherein the F number of the cameraoptical lens is smaller than or equal to 1.77.